github.com/tilt-dev/tilt@v0.33.15-0.20240515162809-0a22ed45d8a0/internal/hud/fake_hud.go (about)

     1  package hud
     2  
     3  import (
     4  	"context"
     5  	"testing"
     6  	"time"
     7  
     8  	"github.com/tilt-dev/tilt/internal/store"
     9  	"github.com/tilt-dev/tilt/pkg/logger"
    10  	"github.com/tilt-dev/tilt/pkg/model"
    11  
    12  	"github.com/tilt-dev/tilt/internal/hud/view"
    13  )
    14  
    15  var _ HeadsUpDisplay = (*FakeHud)(nil)
    16  
    17  type FakeHud struct {
    18  	LastView  view.View
    19  	viewState view.ViewState
    20  	updates   chan view.View
    21  	Canceled  bool
    22  	Closed    bool
    23  	closeCh   chan interface{}
    24  }
    25  
    26  func NewFakeHud() *FakeHud {
    27  	return &FakeHud{
    28  		updates: make(chan view.View, 10),
    29  		closeCh: make(chan interface{}),
    30  	}
    31  }
    32  
    33  func (h *FakeHud) Run(ctx context.Context, dispatch func(action store.Action), refreshInterval time.Duration) error {
    34  	select {
    35  	case <-ctx.Done():
    36  	case <-h.closeCh:
    37  	}
    38  	h.Canceled = true
    39  	return ctx.Err()
    40  }
    41  
    42  func (h *FakeHud) OnChange(ctx context.Context, st store.RStore, _ store.ChangeSummary) error {
    43  	state := st.RLockState()
    44  	view := StateToTerminalView(state, st.StateMutex())
    45  	st.RUnlockState()
    46  
    47  	err := h.update(view, h.viewState)
    48  	if err != nil {
    49  		logger.Get(ctx).Infof("Error updating HUD: %v", err)
    50  	}
    51  
    52  	return nil
    53  }
    54  
    55  func (h *FakeHud) update(v view.View, vs view.ViewState) error {
    56  	h.LastView = v
    57  	h.updates <- v
    58  	return nil
    59  }
    60  
    61  func (h *FakeHud) WaitUntilResource(t testing.TB, ctx context.Context, msg string, name model.ManifestName, isDone func(view.Resource) bool) {
    62  	h.WaitUntil(t, ctx, msg, func(view view.View) bool {
    63  		res, ok := view.Resource(name)
    64  		if !ok {
    65  			return false
    66  		}
    67  		return isDone(res)
    68  	})
    69  }
    70  
    71  func (h *FakeHud) WaitUntil(t testing.TB, ctx context.Context, msg string, isDone func(view.View) bool) {
    72  	t.Helper()
    73  	ctx, cancel := context.WithTimeout(ctx, time.Second)
    74  	defer cancel()
    75  
    76  	for {
    77  		select {
    78  		case <-ctx.Done():
    79  			t.Fatalf("Timed out waiting for: %s", msg)
    80  		case view := <-h.updates:
    81  			done := isDone(view)
    82  			if done {
    83  				return
    84  			}
    85  		}
    86  	}
    87  }